如何使用C#中的LdapConnection对象在LDAP中搜索用户?

我使用LdapConnection对象搜索找到了答案。因此,我们可以使用LdapConnection类的SendRequest方法,使用SearchRequest返回搜索响应。在下面的例子中,我用uid用户名搜索了用户,并检索了其DN。

ldapConnection = new LdapConnection(
                new LdapDirectoryIdentifier(_hostName, _port),
                null,
                AuthType.Basic
                );

string searchFilter = String.Format("(&(objectClass=user)(uid={0}))", userName);

string userStore = "OU=WebsiteUsers,OU=InternalUsers";

SearchRequest searchRequest = new SearchRequest
                (userStore,
                 searchFilter,
                 System.DirectoryServices.Protocols.SearchScope.Subtree,
                 new string[] { "DistinguishedName" });

var response = (SearchResponse)ldapConnection.SendRequest(searchRequest);
string userDN = response.Entries[0].Attributes["DistinguishedName"][0].ToString();